Bridge structure of spectacles frame

Abstract

Disclosed is an improved bridge structure of spectacles frame, which frame has a bridge and a transverse piece both connecting two rims side by side. It comprises a joint piece and opposite arms, each arm being fixed to one or the other rim at one end, and being fixed to the joint piece at the other end so as to permit the arms to rotate relative to each other. The rotatable bridge permits the frame to yielding twist when exterior force is applied thereto, and to restore to its original shape when the exterior force is removed therefrom.

We claim: 
     
       1. A bridge structure of spectacles frame, which frame has a bridge and a transverse piece both connecting two rims side by side, characterized in that said bridge comprises a joint piece and opposite arms, each arm being fixed to one or the other rim at one end, and being fixed to the joint piece at the other end so as to permit the arms to rotate relative to each other but prevent them from being separate off from each other; and wherein the joint piece is a tubulous member having a relatively large diameter hollow section and a relatively small diameter hollow section and a relatively small diameter hollow section with an annular stepwise transition appearing therebetween;   one arm has an expanded end large enough to be cause by the annular stepwise transition in the tubulous member, thus preventing the slipping-off of the one arm from the joint piece, and permitting rotation of the one arm in the tubulous member;   and the other arm is inserted in and soldered to the relatively large diameter end of the tubulous member.   
     
     
       2. A bridge structure of spectacles frame, which frame has a bridge and a transverse piece both connecting two rims side by side, characterized in that said bridge comprises a joint piece and opposite arms, each arm being fixed to one or the other rim at end, and being fixed to the joint piece at the other end so as to permit the arms to rotate relative to each other but prevent them from being separate off from each other; and wherein one arm is connected integrally to one end of the joint piece.